Exceptions API¶ wd.di.exceptions.InvalidOperationError ¶ Bases: RuntimeError Raised when an operation is not valid for the object’s state. wd.di.exceptions.CircularDecoratorError ¶ Bases: RuntimeError Raised when a cycle in the decorator chain is detected. Parameters¶ chain: The list of decorator callables/classes involved in the cycle, in the order they were traversed.